20102002010123 has 8 divisors (see below), whose sum is σ = 21929514773760. Its totient is φ = 18274498919080.

The previous prime is 20102002010119. The next prime is 20102002010147. The reversal of 20102002010123 is 32101020020102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20102002010123 - 2² = 20102002010119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20102002010098 and 20102002010107.

It is not an unprimeable number, because it can be changed into a prime (20102002310123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2333186 + ... + 6756312.

It is an arithmetic number, because the mean of its divisors is an integer number (2741189346720).

Almost surely, 2^{20102002010123} is an apocalyptic number.

20102002010123 is a deficient number, since it is larger than the sum of its proper divisors (1827512763637).

20102002010123 is a wasteful number, since it uses less digits than its factorization.

20102002010123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4836297.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20102002010123 its reverse (32101020020102), we get a palindrome (52203022030225).

The spelling of 20102002010123 in words is "twenty trillion, one hundred two billion, two million, ten thousand, one hundred twenty-three".